Vibration-absorbing foot.



W. H.' SHERWOOD. VIBRATION ABSORBING FOOT.

APPLICATION FILED JULY 20, 1909,

Paented Deal, i909 l"ill/'IlLliIAM H. SHERWOOD, OF NEW YORK, N. Y.

VIBRATIGN-AESORBING FOOT.

cisnes.

To all 'whowi it may concern:

Be it known that l, 1WILLIAM H. Sirenwoon, citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Vil bration-Absorbing Feet, of which the following is a specification, reference being had therein to the accompanying drawing.

The object of this invention is to provide typewriting machines with vibration destroying pads or feet which shall also serve for detachably securing the machine to its table or like support.

In the accompanying drawings, Figure Il shows the novel foot in vertical axial scction as used in attaching the machine to the table, portions of both the machine and table beinO' shown with the attaching devices, all partly in section. Fig. 2 is a ,plan View Yof the devices carried by the table, for securing the foot thereto. Fig. 3 is a top plan view of the body of the foot, a certain inclosing sleeve being omitted. Fig. i is a plan view of the sleeve when detached.

The main portion oi" the foot consists of a'heavy cylindrical spring wire coil A. the ends of which abut rubber pads B of like diameter, each having a boss B1 to enter the end of the coil, and the upper pad further having a boss B2 Afitting in thc usual tubular passage in the frame C ot' the machine. Over the spring and pads is stretched a tube D, of sott rubber, which is normally of inuch shorter diameter than the coil, and

-is also of materially greater lei'igth than the coil and pads, so that its end portions are drawn inl over the pads as shown at D1,

. against which it rests.

to forni a sort of annular flange which receives the vweight of vthe machine above and which transmits below vthat weight to the table or other surface on which the foot may rest. Obviously this soft rubber not adapted to transmit vibrations, but is adapted to deaden vibrations of any part It is also evident that when it deteriorates it may be readily and cheaply replaced. This foot does not ordinarily rest directly upon the surface of the table F but upon a loop G of a strip G which is secured tothe table, and in this' loep slides a somewhat closely fitting strip- H provided with a. projection H1 by which it may be moved longitudinally, and with a recess at H2 to engage a projection on the Specification of Letters Patent.

Application filed July 20, 1909.

Patented Dec. 2l, i909'. serial No. 598,592.

dental relative displacement. The loop and -bifurcated at 'M1 and carried into hooked engagement with the portion C1 of the frame C. At its lower end the rod is provided with an enlargement or disk N which is normally held below the foot by a light I spring O coiled about the rod between the rubber pads, pressing a collar or stop l on the rod and reacting against the boss lll above it. projected so far by the spring O that when the strip or har l-l. is moved yto the right until its aperture has its larger portion in registry with the corresponding part ot' the aperture in the loop, the disk may be passed down through both apertures and into the plane of the strip G1. It the strip H be then moved to the left until the rod M is held in the narrower portions of the two apertures,

as shown in Fig. 2, the disk will be caught strip C1 at certain times and prevent accil is at the same ti'ne drawn down upon the part C1 of the frame, the machine is securely held, it being of course understood that the like foot. is used at each point of support of the machine.

Although'the machine is locked to the table, it really rests freely upon the spring feet and is free to move downward from the hooks which however resist its increasing its distance from the table. If the machine be detached from the table and be placed uion a plane surface, the light yspring '0,

yields and the disk rises into a recess in the bottoni of the `toot, so that the machine again rests upon and is supported wholly by its spring feet.

Any suitable bushing Q, for the frod M, if desired.

it is to be noted that the toot may be used with structures other than typewriters, and that for certain purposes, such as supporting certain kinds ot musical instruments, for example, the sliding' rod with its hooks and disk may be omitted, together with the devices for securing the ioot to thetable.

`What l'. claim is:

1. ln apparatus ol the class described, the

may provided The disk is of such size and is combination with" a metallic spring coil 01"' yielding non-metalli@ pads abutting the ends 01": ille Coil, respectively? enel an elastic nonnietullie sleeve inclosing the coil and pads.

The Combination with a metallic spring coil, of rubber pads covering the ends, ire speetively, of the coil and proviileel with bosses fitting therein, and :i longer 'and nerinally Smaller soft rubber sleeve stretched over the Coil and pads :1nd forming annular bearing flanges upon the outer 'feces of the latter.

3. The combination with vibrationabsorbing foot, of longer rofl sliding in elle axis of the fooi., having iis upper end adapt-- ed to engage the structure to be supported, and its normally projecting lower enel adapted to be engaged and held by devices seem-eil to liable or the like.

'llie combination with a table, of a vibrationebsorbing floot, devices projecting above lhe foot to engage the srncllure to loe supported und below the foot to be engaged by retaining devices, and retaining devices carried by `the sable and adapted to be moved info and out of engagement with the devices 'projecting from lhe foot.

The combination with :i vibratie absorbing foot, of an axial rod sliding longimilinall in upper .end 53' strueure io .iils progeeing lower enil wi in engaged by devices earriefl j l a "gni prng A l s below 4@le body yieldinglj hol olf 4Jee Y (i. 'fille eombinetion with e 'liable of a raised loop lo lle saine enel provided with a fi-like apex ire, e slie movable ite the loop and provided with en analogous but; oppositely nrnecl aperture, and means for locking 'the slifle 7, The eoi'nei tiei'i v-Jili telle and foot engaging.; devices seemed theretov of a vibration-absorbing foot adapted to support e structure above ille table and providefl .vifali :i eei'itral reeess in iis lower endg) a, roel Sliding in lie axis of @ne ieot 'michaving a disk at its lower endA to be engaged by sa'icl devices,

and :i spring yieldingly resisting elle rising oi'1 die disk 'into said recess.

in testimony whereof .l alli); my signature in presence oi two witnesses. 

